Jokwang JDG-NT12 series sight glass is designed to visually identify operating conditions and vapor leakage in the steam trap, for which it is installed immediately after the steam trap. The installation of the glass should be carried out at a distance of at least 1 m from the steam trap.
The body and cover of the JDG-NT12 sight glass are made of malleable cast iron, the inspection windows are made of tempered glass. The connections are threaded. The maximum operating pressure is 10 bar. The maximum operating temperature is +220 °C. The working medium is condensate.